Flying Embers

Flying Embers is a Ventura, California beverage company founded in 2017 by Bill Moses (co-founder of KeVita) that brews USDA-organic hard kombucha, canned cocktails and hard seltzers, sold in retail across the United States and direct-to-consumer from flyingembers.com. It is not a software vendor and runs no developer program, but its Shopify-hosted storefront serves a real, live agent surface from its own domain: a Universal Commerce Protocol (UCP) merchant profile at /.well-known/ucp, an anonymous Model Context Protocol endpoint at /api/ucp/mcp exposing 13 catalog, cart, checkout and order tools with full JSON Schema input contracts, a published /llms.txt and /agents.md carrying agent operating instructions, and OIDC/OAuth 2.0 discovery documents for customer accounts. Payment completion is explicitly gated on contemporaneous human approval and on an idempotency key.

Flying Embers is listed with 2 APIs on the APIs.io network. Tagged areas include Company, Commerce, E-Commerce, Retail, and Beverages.

Flying Embers’ developer surface includes documentation, engineering blog, support, authentication, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

26.1/100 emerging ▬ flat Agent 21/100 agent aware Front door AI 1/6 silent Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 APIs 1 MCP Servers 3 Agent Skills

Company Commerce E-Commerce Retail Beverages Consumer Packaged Goods Agentic Commerce MCP Shopify Direct to Consumer

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 26.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 5.2 / 17

Access Clarity 4.7 / 17

Operational Transparency 2.3 / 11

Contract Governance 1.9 / 10

Discoverability 5.7 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 27.6 — up to +14.5 composite points
Developer Ergonomics scores 30.4 — up to +13.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/flying-embers/apis.yml: open an issue on github.com/api-evangelist/flying-embers to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Food Safety (GFSI-recognised certification)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

Universal Commerce Protocol (UCP)

measured — observed by APIs.io (shopify)

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Flying Embers Commerce API (UCP over MCP)

Anonymous JSON-RPC 2.0 / Model Context Protocol endpoint implementing the Universal Commerce Protocol shopping service (version 2026-04-08). A tools/list call returns 13 tools w...

Flying Embers Storefront Product JSON

Unauthenticated read-only storefront JSON the merchant documents for agents that only need to read store data: product and collection JSON, product search, and the sitemap. Docu...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Flying Embers Commerce MCP (UCP)

Flying Embers serves a live, unauthenticated Model Context Protocol endpoint on its own domain as part of the Universal Commerce Protocol (UCP) shopping service. A tools/list ca...

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Browse and look up the Flying Embers catalog

AGENT SKILL

Build and manage a Flying Embers cart

AGENT SKILL

Complete a Flying Embers checkout with human approval

AGENT SKILL

Flying Embers API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Flying Embers Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Flying Embers Rate Limits

1 limits

RATE LIMITS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Flying Embers Authentication

none/oauth2/openIdConnect · 2 schemes

SECURITY

Flying Embers Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Flying Embers Scopes

4 scopes · authorizationCode

4 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

Conformance

ErrorCatalog

Lifecycle

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 3

Status, limits, changes, and where to get help

Support

Support

HelpCenter

HelpCenter

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

SecondaryMarket

SecondaryMarket

Source (apis.yml)

aid: flying-embers
name: Flying Embers
description: 'Flying Embers is a Ventura, California beverage company founded in 2017 by Bill Moses (co-founder of KeVita)
  that brews USDA-organic hard kombucha, canned cocktails and hard seltzers, sold in retail across the United States and direct-to-consumer
  from flyingembers.com. It is not a software vendor and runs no developer program, but its Shopify-hosted storefront serves
  a real, live agent surface from its own domain: a Universal Commerce Protocol (UCP) merchant profile at /.well-known/ucp,
  an anonymous Model Context Protocol endpoint at /api/ucp/mcp exposing 13 catalog, cart, checkout and order tools with full
  JSON Schema input contracts, a published /llms.txt and /agents.md carrying agent operating instructions, and OIDC/OAuth
  2.0 discovery documents for customer accounts. Payment completion is explicitly gated on contemporaneous human approval
  and on an idempotency key.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://www.flyingembers.com/cdn/shop/files/fe-social-logo.png?v=1692298714
url: https://raw.githubusercontent.com/api-evangelist/flying-embers/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-16'
modified: '2026-08-16'
tags:
- Company
- Commerce
- E-Commerce
- Retail
- Beverages
- Consumer Packaged Goods
- Agentic Commerce
- MCP
- Shopify
- Direct to Consumer
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: flying-embers:flying-embers-commerce-mcp
  name: Flying Embers Commerce API (UCP over MCP)
  description: Anonymous JSON-RPC 2.0 / Model Context Protocol endpoint implementing the Universal Commerce Protocol shopping
    service (version 2026-04-08). A tools/list call returns 13 tools with JSON Schema input contracts covering catalog search
    and lookup, cart lifecycle, checkout lifecycle and order retrieval. Every call requires an agent profile URI in meta.ucp-agent.profile;
    complete_checkout additionally requires meta.idempotency-key and explicit human approval of payment.
  humanURL: https://www.flyingembers.com/agents.md
  baseURL: https://www.flyingembers.com/api/ucp/mcp
  tags:
  - Commerce
  - MCP
  - Agentic Commerce
  - Checkout
  - Catalog
  properties:
  - type: MCPServer
    url: mcp/flying-embers-mcp.yml
  - type: Documentation
    url: https://www.flyingembers.com/agents.md
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
- aid: flying-embers:flying-embers-storefront-json
  name: Flying Embers Storefront Product JSON
  description: 'Unauthenticated read-only storefront JSON the merchant documents for agents that only need to read store data:
    product and collection JSON, product search, and the sitemap. Documented in the merchant''s own /llms.txt; robots.txt
    directs agents to the UCP/MCP endpoint for cart and checkout instead.'
  humanURL: https://www.flyingembers.com/llms.txt
  tags:
  - Commerce
  - Catalog
  - Product
  tags_raw:
  - Commerce
  - Catalog
  - Products
  properties:
  - type: LLMsTxt
    url: https://www.flyingembers.com/llms.txt
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: storefront-json
common:
- type: DomainSecurity
  url: security/flying-embers-domain-security.yml
- type: Website
  url: https://www.flyingembers.com/
- type: Documentation
  url: https://www.flyingembers.com/agents.md
- type: Blog
  url: https://www.flyingembers.com/blogs/news
- type: Support
  url: https://www.flyingembers.com/pages/contact
- type: HelpCenter
  url: https://www.flyingembers.com/pages/faq
- type: Login
  url: https://www.flyingembers.com/account/login
- type: TermsOfService
  url: https://www.flyingembers.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://www.flyingembers.com/policies/privacy-policy
- type: MCPServer
  url: mcp/flying-embers-mcp.yml
- type: LLMsTxt
  url: llms/flying-embers-llms.txt
- type: WellKnown
  url: well-known/flying-embers-well-known.yml
- type: Authentication
  url: authentication/flying-embers-authentication.yml
- type: OAuthScopes
  url: scopes/flying-embers-scopes.yml
- type: Conventions
  url: conventions/flying-embers-conventions.yml
- type: Idempotency
  url: conventions/flying-embers-conventions.yml
- type: Conformance
  url: conformance/flying-embers-conformance.yml
- type: ErrorCatalog
  url: errors/flying-embers-problem-types.yml
- type: Lifecycle
  url: lifecycle/flying-embers-lifecycle.yml
- type: DataModel
  url: data-model/flying-embers-data-model.yml
- type: RateLimits
  url: rate-limits/flying-embers-rate-limits.yml
- type: Plans
  url: plans/flying-embers-plans-pricing.yml
- type: Packages
  url: packages/flying-embers-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: SecondaryMarket
  name: Forge Global listing
  url: https://forgeglobal.com/flying-embers_stock/
x-enrichment:
  date: '2026-08-16'
  status: enriched
  artifacts_added: 23
  pass: local-v1

Flying Embers API — frequently asked questions

Does Flying Embers have an API?

Yes. APIs.io lists 2 APIs from Flying Embers, including Flying Embers Commerce API (UCP over MCP) and Flying Embers Storefront Product JSON.

How do I authenticate with the Flying Embers API?

Flying Embers documents its authentication (none/oauth2/openIdConnect · 2 schemes). The details are profiled on APIs.io as Flying Embers Authentication.

Does Flying Embers have an MCP server?

Yes. APIs.io lists 1 MCP server for Flying Embers: Flying Embers serves a live, unauthenticated Model Context Protocol endpoint on its own domain as part of the Universal Commerce Protocol (UCP) shopping service. A tools/list call returns 13 real tool

Is the Flying Embers API ready for AI agents?

Flying Embers has a Kin Score of 26.1 out of 100 (emerging) and an Agent Readiness score of 21.2 (agent-aware), scored by API Evangelist on 2026-11-06.

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